40,555 results match your criteria Primitive Neuroectodermal Tumors

Primary renal NUT carcinoma identified by next-generation sequencing: a case report and literature review.

Int J Clin Exp Pathol 2021 15;14(5):662-669. Epub 2021 May 15.

Department of Medical, OrigiMed Shanghai, China.

Background: NUT carcinoma is a rare aggressive squamous cell carcinoma subtype genetically characterized by rearrangements. NUT carcinoma can be easily misdiagnosed as an undifferentiated carcinoma or Ewing sarcoma due to its primitive differentiation.

Case Presentation: We report a case of renal-derived NUT carcinoma diagnosed as a malignant small round-cell tumor resembling Ewing sarcoma/primitive neuroectodermal tumor where the diagnosis was revised to NUT carcinoma with a characteristic NUTM1 rearrangement based on next-generation sequencing (NGS). Read More

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Skull Base Primary Ewing Sarcoma: A Radiological Experience of a Rare Disease in an Atypical Location.

Am J Case Rep 2021 Jun 5;22:e930384. Epub 2021 Jun 5.

Department of Radiology, School of Medical Sciences, University of Science Malaysia, Kota Bharu, Malaysia.

BACKGROUND Ewing sarcoma and primitive neuroectodermal tumor are rare tumors grouped under the spectrum of the Ewing sarcoma family of tumors. These highly malignant tumors involve the bones and commonly occur in children. Ewing sarcoma of the skull bone accounts for only 1% of all Ewing sarcomas, with primary skull base Ewing sarcoma occurring in less than 1% of cases. Read More

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Therapeutic implications of improved molecular diagnostics for rare CNS-embryonal tumor entities: results of an international, retrospective study.

Neuro Oncol 2021 Jun 2. Epub 2021 Jun 2.

Department of Neurooncology, Russian Scientific Center of Radiology, Moscow, Russia.

Background: Only few data are available on treatment-associated behavior of distinct rare CNS-embryonal tumor entities previously treated as "CNS-primitive neuroectodermal tumors" (CNS-PNET). Respective data on specific entities, including CNS neuroblastoma, FOXR2 activated (CNS NB-FOXR2), and embryonal tumor with multi-layered rosettes (ETMR) are needed for development of differentiated treatment strategies.

Methods: Within this retrospective, international study, tumor samples of clinically well-annotated patients with the original diagnosis of CNS-PNET were analyzed using DNA methylation arrays (n=307). Read More

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miRNA-34a-5p regulates progression of neuroblastoma via modulating the Wnt/β-catenin signaling pathway by targeting SOX4.

Medicine (Baltimore) 2021 May;100(20):e25827

The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, P.R. China.

Abstract: Neuroblastoma is an embryonal tumor of the autonomic nervous system with poor prognosis in children. In present study, we demonstrated the relationship of miRNA-34a-5p in the regulating of the Wnt/β-catenin signaling pathway by targeting SRY-related HMG-box (SOX4)Reverse transcription-quantitative PCR was used to detect the expression levels of miRNA-34a-5p and SoX4. Western blotting was performed to assess the protein expression levels of SoX4, Wnt, MMP9, Bax, and Bcl-2. Read More

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A Novel pH-Sensitive Multifunctional DNA Nanomedicine: An Enhanced and Harmless GD2 Aptamer-Mediated Strategy for Guiding Neuroblastoma Antitumor Therapy.

Int J Nanomedicine 2021 10;16:3217-3240. Epub 2021 May 10.

Department of Neonatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.

Background: GD2 is a mainstream biomarker for neuroblastoma (NB)-targeted therapy. Current anti-GD2 therapeutics exhibit several side effects since GD2 is also expressed at low levels on normal cells. Thus, current anti-GD2 therapeutics can be compromised by the coexistence of the target receptor on both cancer cells and normal cells. Read More

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Large lateral intraventricular tumors - Outcome of radical surgery.

J Clin Neurosci 2021 Jun 14;88:205-212. Epub 2021 Apr 14.

Department of Neurosurgery, K.E.M. Hospital and Seth G.S. Medical College, Parel, Mumbai, India.

This is a retrospective analysis of 145 cases of lateral intraventricular tumors that were larger than 4 cm in their maximum dimension. The aim of surgery was radical tumor resection. During the period January 2000 to December 2019, 145 cases of lateral intraventricular tumors were treated by surgery by an interhemispheric approach. Read More

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Hutchison's syndrome: suspecting metastatic neuroblastoma.

BMJ Case Rep 2021 May 13;14(5). Epub 2021 May 13.

Department of Ophthalmic Plastics, Orbit and Ocular Oncology, LV Prasad Eye Institute Bhubaneswar Campus, Bhubaneswar, Odisha, India

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Improving in vitro ciguatoxin and brevetoxin detection: selecting neuroblastoma (Neuro-2a) cells with lower sensitivity to ouabain and veratridine (OV-LS).

Harmful Algae 2021 03 2;103:101994. Epub 2021 Feb 2.

German Federal Institute for Risk Assessment, Department Safety in the Food Chain, National Reference Laboratory of Marine Biotoxins, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany - www.bfr.bund.de.

Marine biotoxins accumulating in seafood products pose a risk to human health. These toxins are often potent in minute amounts and contained within complex matrices; requiring sensitive, reliable, and robust methods for their detection. The mouse neuroblastoma (Neuro-2a) cytotoxicity assay (N2a-assay) is a sensitive, high-throughput, in vitro method effective for detecting sodium channel-specific marine biotoxins. Read More

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Rare presentation of ciliary body medulloepithelioma with lens particle-induced uveitis.

BMJ Case Rep 2021 May 11;14(5). Epub 2021 May 11.

Ocular Oncology Services, The Operation Eyesight Universal Institute for Eye Cancer, LV Prasad Eye Institute, Hyderabad, Telangana, India

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Sea Cucumber-Derived Peptides Alleviate Oxidative Stress in Neuroblastoma Cells and Improve Survival in Exposed to Neurotoxic Paraquat.

Oxid Med Cell Longev 2021 19;2021:8842926. Epub 2021 Apr 19.

Cambridge Infinitus Research Centre, Department of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, UK.

Oxidative stress results when the production of oxidants outweighs the capacity of the antioxidant defence mechanisms. This can lead to pathological conditions including cancer and neurodegeneration. Consequently, there is considerable interest in compounds with antioxidant activity, including those from natural sources. Read More

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Congenital Cutaneous Peripheral Primitive Neuroectodermal Tumor (pPNET) of Scalp: Youngest Case So Far.

J Indian Assoc Pediatr Surg 2021 Jan-Feb;26(1):60-62. Epub 2021 Jan 11.

Department of Pediatric Surgery, Maulana Azad Medical College, New Delhi, India.

Congenital cutaneous peripheral primitive neuroectodermal tumor (pPNET) is very rare and also very rarely located in scalp. Only two cases of PNET as primary tumor in scalp are reported so far in the literature. Non mutilating surgical excision, combined with chemotherapy and radiotherapy are used in treating these rare tumors. Read More

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January 2021

Epidemiology and prognostic factors of pediatric brain tumor survival in the US: Evidence from four decades of population data.

Cancer Epidemiol 2021 06 1;72:101942. Epub 2021 May 1.

Program of Epidemiology, College of Health Sciences, University of Delaware, 100 Discovery Blvd, Newark, DE, 19713, United States.

Brain tumors, a group of heterogeneous diseases, are the second most common cancer and the leading cause of cancer-related deaths in children. Insight into the prognosis of pediatric brain tumor survival has led to improved outcomes and could be further advanced through precision in prognosis. We analyzed the United States SEER population-based dataset of 15,723 pediatric brain tumor patients diagnosed and followed between 1975 and 2016 using a stratified Cox proportional hazards model. Read More

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Renal Primitive Neuroectodermal Tumor With Inferior Vena Cava Thrombus: Case Series and Literature Review of a Rare but Challenging Entity.

Clin Genitourin Cancer 2021 Apr 3. Epub 2021 Apr 3.

Department of Urology, Peking University Third Hospital, No. 49 North Garden Road, Beijing, PR China. Electronic address:

Objective: To investigate the clinicopathological characteristics, treatments, and prognosis of patients with renal primitive neuroectodermal ectodermal tumors (rPNETs) with inferior vena cava (IVC) tumor thrombus.

Patients And Methods: We retrospectively reviewed 6 patients with rPNETs and IVC tumor thrombus between January 2005 and December 2019, and identified 39 published cases through a literature review. The clinicopathological characteristics, treatments, and survival data were analyzed. Read More

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Nanohydroxyapatite as a Biomaterial for Peripheral Nerve Regeneration after Mechanical Damage-In Vitro Study.

Int J Mol Sci 2021 Apr 24;22(9). Epub 2021 Apr 24.

Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland.

Hydroxyapatite has been used in medicine for many years as a biomaterial or a cover for other biomaterials in orthopedics and dentistry. This study characterized the physicochemical properties (structure, particle size and morphology, surface properties) of Li- and Li/Eu-doped nanohydroxyapatite obtained using the wet chemistry method. The potential regenerative properties against neurite damage in cultures of neuron-like cells (SH-SY5Y and PC12 after differentiation) were also studied. Read More

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Role of Microbiota-Derived Extracellular Vesicles in Gut-Brain Communication.

Int J Mol Sci 2021 Apr 19;22(8). Epub 2021 Apr 19.

Department of Molecular and Cellular Pathology of Alcohol, Príncipe Felipe Research Center, 46012 Valencia, Spain.

Human intestinal microbiota comprise of a dynamic population of bacterial species and other microorganisms with the capacity to interact with the rest of the organism and strongly influence the host during homeostasis and disease. Commensal and pathogenic bacteria coexist in homeostasis with the intestinal epithelium and the gastrointestinal tract's immune system, or GALT (gut-associated lymphoid tissue), of the host. However, a disruption to this homeostasis or dysbiosis by different factors (e. Read More

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An Overview of Long Non-Coding (lnc)RNAs in Neuroblastoma.

Int J Mol Sci 2021 Apr 19;22(8). Epub 2021 Apr 19.

Department of Experimental Medicine, University of Genova, 16132 Genova, Italy.

Neuroblastoma (NB) is a heterogeneous developmental tumor occurring in childhood, which arises from the embryonic sympathoadrenal cells of the neural crest. Although the recent progress that has been done on this tumor, the mechanisms involved in NB are still partially unknown. Despite some genetic aberrations having been identified, the sporadic cases represent the majority. Read More

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Infiltration of Immune Competent Cells into Primary Tumors and Their Surrounding Connective Tissues in Xenograft and Syngeneic Mouse Models.

Int J Mol Sci 2021 Apr 19;22(8). Epub 2021 Apr 19.

Institute of Anatomy and Experimental Morphology, Center for Experimental Medicine, University Cancer Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany.

To fight cancer more efficiently with cell-based immunotherapy, more information about the cells of the immune system and their interaction with cancer cells in vivo is needed. Therefore paraffin wax embedded primary breast cancers from the syngeneic mouse WAP-T model and from xenografted tumors of breast, colon, melanoma, ovarian, neuroblastoma, pancreatic, prostate, and small cell lung cancer were investigated for the infiltration of immunocompetent cells by immunohistochemistry using antibodies against leukocyte markers. The following markers were used: CD45 as a pan-leukocyte marker, BSA-I as a dendritic cell marker, CD11b as an NK cell marker, and CD68 as a marker for macrophages. Read More

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The Role of Extracellular Vesicles in the Progression of Human Neuroblastoma.

Int J Mol Sci 2021 Apr 12;22(8). Epub 2021 Apr 12.

Laboratorio Cellule Staminali Post-Natali e Terapie Cellulari, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy.

The long-underestimated role of extracellular vesicles in cancer is now reconsidered worldwide by basic and clinical scientists, who recently highlighted novel and crucial activities of these moieties. Extracellular vesicles are now considered as king transporters of specific cargoes, including molecular components of parent cells, thus mediating a wide variety of cellular activities both in normal and neoplastic tissues. Here, we discuss the multifunctional activities and underlying mechanisms of extracellular vesicles in neuroblastoma, the most frequent common extra-cranial tumor in childhood. Read More

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Metastatic Neuroblastoma Presenting as a Submandibular Mass with Mandibular Bone Involvement in a Three-Year-Old Child.

Int J Environ Res Public Health 2021 04 14;18(8). Epub 2021 Apr 14.

Department of Pediatric Surgery, Medical College of Georgia at Augusta University, Augusta, GA 30912, USA.

Although neuroblastoma is one of the most common extra-cranial tumors in the pediatric population, it is rarely seen as a metastasis to the mandibular bone. The following is a case report of a 3-year-old male who initially presented with a submandibular mass that was proven to be a poorly differentiated metastatic neuroblastoma through excisional biopsy. This report is one of the few case reports that demonstrates metastatic submandibular neuroblastoma with mandibular bone involvement in the pediatric population. Read More

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Exosomes from Plasma of Neuroblastoma Patients Contain Doublestranded DNA Reflecting the Mutational Status of Parental Tumor Cells.

Int J Mol Sci 2021 Apr 1;22(7). Epub 2021 Apr 1.

IRCCS Giannina Gaslini, 16147 Genova, Italy.

Neuroblastoma (NB) is an aggressive infancy tumor, leading cause of death among preschool age diseases. Here we focused on characterization of exosomal DNA (exo-DNA) isolated from plasma cell-derived exosomes of neuroblastoma patients, and its potential use for detection of somatic mutations present in the parental tumor cells. Exosomes are small extracellular membrane vesicles secreted by most cells, playing an important role in intercellular communications. Read More

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Heterogeneities in Cell Cycle Checkpoint Activation Following Doxorubicin Treatment Reveal Targetable Vulnerabilities in Mutated Ultra High-Risk Neuroblastoma Cell Lines.

Int J Mol Sci 2021 Apr 1;22(7). Epub 2021 Apr 1.

Department of Women's and Children's Health, Karolinska Institutet, 171 64 Stockholm, Sweden.

Most chemotherapeutics target DNA integrity and thereby trigger tumour cell death through activation of DNA damage responses that are tightly coupled to the cell cycle. Disturbances in cell cycle regulation can therefore lead to treatment resistance. Here, a comprehensive analysis of cell cycle checkpoint activation following doxorubicin (doxo) treatment was performed using flow cytometry, immunofluorescence and live-cell imaging in a panel of mutated ultra high-risk neuroblastoma (NB) cell lines, SK-N-DZ, Kelly, SK-N-AS, SK-N-FI, and BE(2)-C. Read More

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Neuroblastoma metastasized to the mandible and the spinal extradural regions: A case report.

Medicine (Baltimore) 2021 Apr;100(17):e24399

Cancer Center.

Abstract: Neuroblastoma (NB) metastasized into the mandible and spinal extradural region was rarely reported. We present a case with metastatic NB to the mandible and the spinal extradural regions. The patient received chemotherapy using NB 97 regimen and was tumor free after 8 months, but 9 months after the treatment, the patient presented with lower limb paralysis and persistent pain in maxillofacial region as well as swelling in the left mandibular area. Read More

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Clinical-MRI radiomics enables the prediction of preoperative cerebral spinal fluid dissemination in children with medulloblastoma.

World J Surg Oncol 2021 Apr 22;19(1):134. Epub 2021 Apr 22.

Department of Radiology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.

Background: Medulloblastoma (MB) is the most common pediatric embryonal tumor. Accurate identification of cerebral spinal fluid (CSF) dissemination is important in prognosis prediction. Both MRI of the central nervous system (CNS) and CSF cytology will appear false positive and negative. Read More

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Salvage Radiosurgery for Recurrent Supratentorial Primitive Neuroectodermal Tumors: A Single Institutional Series and Review of the Literature.

Stereotact Funct Neurosurg 2021 Apr 21:1-7. Epub 2021 Apr 21.

Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota, USA.

Introduction: Supratentorial primitive neuroectodermal tumor is a rare, aggressive intrinsic brain tumor with limited treatment options for recurrent disease. SRS as a treatment modality in the recurrent setting was investigated.

Methods: A retrospective review of 8 patients treated with SRS for local or distant recurrence of supratentorial PNET from 1999 to 2014 was conducted. Read More

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Expression of pyruvate carboxylase in cultured human astrocytoma, glioblastoma and neuroblastoma cells.

Gen Physiol Biophys 2021 Mar;40(2):127-135

Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia.

Pyruvate carboxylase (PC) is an enzyme catalyzing the conversion of pyruvate to oxaloacetate, which possesses anaplerotic role in cellular metabolism. The expression of PC was confirmed in cells of several cancer types, in which it ensures several cellular functions, such as growth and division. To investigate the expression of PC in human astrocytoma, glioblastoma and neuroblastoma cells we applied the immunodetection methods. Read More

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Radiation induced glioma in a sexagenarian: A case report.

Medicine (Baltimore) 2021 Apr;100(16):e25373

Department of Neurosurgery, West China Hospital, Sichuan University; 37 Guo Xue Xiang Road, Chengdu, Sichuan, P. R. China.

Introduction: Radiation induced gliomas often occurs after radiation therapy for other brain tumors. Medulloblastoma often occurs in children and its associated radiation-induced glioblastoma multiforme's (GBM) after radiotherapy often has a long latency period. Our case is very unique because the medulloblastoma was detected at an advance age and the latency period of radiation-induced GBM was relatively shorter. Read More

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Prognostic significance of isochromosome 17q in hematologic malignancies.

Oncotarget 2021 Mar 30;12(7):708-718. Epub 2021 Mar 30.

Department of Hematooncology and Bone Marrow Transplantation, Medical University of Lublin, Lublin, Poland.

Isochromosome 17q [i(17q)] with its two identical long arms is formed by duplication of the q arm and loss of the short p arm. The breakpoint in chromosome 17 that allows the formation of this isochromosome is located at 17p11.2, and the ~240 kb region with its large, palindromic, low-copy repeat sequences are present here. Read More

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Radiological and pathological diagnosis of an incidental Askin tumor.

Radiol Case Rep 2021 Jun 27;16(6):1245-1248. Epub 2021 Mar 27.

Department of Interventional Radiology, Kendall Regional Medical Center, 11750 SW 40th St, Miami, FL 33175, USA.

A 53-year-old male with no significant past medical history presented with an acute traumatic fracture of his thumb. Preoperative chest radiograph before K-wire fixation demonstrated an incidental 9 cm opacity of the left lung. Chest computed tomography revealed a 6. Read More

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Ovarian Primitive Neuroectodermal Tumor: Are You Central or Peripheral?

Int J Gynecol Pathol 2021 Apr 12. Epub 2021 Apr 12.

Department of Pathology, Brigham & Women's Hospital, Boston, Massachusetts (S.E.B.) Departments of Obstetrics and Gynecology (L.A.B.) Pathology and Laboratory Medicine (J.C.D., D.W.P.), University of Kentucky, Lexington, Kentucky.

Primitive neuroectodermal tumors (PNETs) of the ovary are rare, highly aggressive neoplasms with fewer than 100 cases described. PNETs of the ovary can be classified as either peripheral or central types. The peripheral PNETs have small round cells with or without rosette formation, and the central PNETs can be further delineated based on the CNS tumor they morphologically resemble. Read More

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Primitive neuroectodermal tumor of the penile urethra.

Indian J Urol 2021 Jan-Mar;37(1):84-86. Epub 2021 Jan 1.

Department Uro-Oncology and Robotic Surgery, Kokilaben Dhirubhai Ambani Hospital and Medical Research Institute, Mumbai, Maharashtra, India.

Primitive neuroectodermal tumor (PNET)/Ewing's sarcoma tumors are a group of highly malignant tumors composed of small, round cells showing neuroectodermal differentiation that commonly affects soft tissue and bone. PNET involving the genitourinary system is rare and PNET of the penile urethra is rarer still. It exhibits a highly aggressive biological behavior with poor prognosis. Read More

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January 2021